Amazon's big fall hardware and services event is happening right now, and you can follow along with our Amazon event live blog. The company kicked things off by announcing shiny new Ring cameras with Retinal Vision technology. These cameras also feature Alexa+ greetings, the ability to identify familiar people, and a Search Party feature that helps locate missing dogs.

The new models include both 2K and 4K cameras, as well as video doorbells, so there's something for every household.

Ring Retinal 4K devices

Amazon has revealed several devices that support its new Ring Retinal 4K technology, which powers its most advanced cameras. The Wired Doorbell Pro, Spotlight Cam Pro, Floodlight Cam Pro and Outdoor Cam Pro are among the devices to feature Amazon's most vibrant video quality.

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